Why does a comet’s tail point away from the Sun?

• The solar wind blows the tail away from the Sun.
• The Moon’s light only shines on part of the comet.
• The comet’s tail is following the path of Jupiter.
• It is being pulled by a nearby black hole.

Which of these is likely to occur after moist air is cooled below its dew point?

• Water condenses.
• Winds are generated.
• Evaporation increases.
• Ice crystals melt.

Metamorphic rocks with a layered or banded look are called —

• unfoliated
• evaporated
• foliated
• striated

All of the following may be found deep in a natural cave EXCEPT —

• groundwater
• stalagmites
• mineral deposits
• photosynthetic organisms
  

Which of these planets has the smallest diameter and the greatest average
density?

• Jupiter
• Neptune
• Mercury
• Saturn

The folding and faulting found in the rocks of the Blue Ridge Mountains of
Virginia were created by —

• wave action of prehistoric ocean
• collisions of continental plates
• heating and cooling of the prehistoric atmosphere
• seafloor volcanoes

Seawater is typically denser than freshwater due to seawater’s —

• higher salinity
• greater depth
• lower freezing point
• smaller mass

Which of these best describes the composition of a nebula such as the Crab
Nebula?

• Large asteroids
• Clouds of dust and gas
• Ice crystals
• Planets and moons

Limestone chips dissolve after they are placed in a beaker of dilute acid.
Which geologic process is this most similar to?

• Folding
• Subduction
• Weathering
• Faulting

Which of these are caused primarily by the gravitational force between Earth
and the Moon?

• Magnetic poles
• Seasons
• Tides
• Prevailing winds